<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <meta name="author" content="bnbbs">
<meta name="description" content="这是一个 HTML5 页面">
<meta name="keywords" content="html5,css3,响应式">
<meta name="generator" content="sublime text 3">
<meta charset="utf-8">
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<meta http-equiv="content-type" content="text/html charset=utf-8">
<p id="abc">段落</p>
<p class="abc">段落</p>
<p class="abc">段落</p>
<p class="abc">段落</p>
<input type="text" name="user" accesskey="n">
<p contenteditable="true">我可以修改吗</p>
<p dir="rtl">文字到右边了</p>
<p hidden>文字到右边了</p>
<p lang="en">HTML5</p>
<p title="HTML5 教程">HTML5</p>
<input type="text" name="user" tabindex="2">
<input type="text" name="user" tabindex="1">
<p style="color:red;">CSS 样式</p>
</body>
</html>